STATEN ISLAND, N.Y. -- Erica Garner, 27, who emerged as a controversial activist after the death of her father, Eric Garner, has died,a week after suffering an apparent heart attack.

Garner died early Saturday morning at Woodhull Hospital in Brooklyn, her official Twitter account confirmed.

When you report this you remember she was human: mother, daughter, sister, aunt. Her heart was bigger than the world. It really really was. She cared when most people wouldn't have. She was good. She only pursued right, no matter what. No one gave her justice.

The group stopped traffic for a brief time, as they let out chants demanding justice in front of the state Supreme Court building. The march ended at the spot where her father died, and brought together several social activist organizations.

For a time in 2015, Garner considered challenging Rep. Daniel Donovan when he ran for re-election the following year. Donovan was the distict attorney when a grand jury declined to indict Police Officer Daniel Pantaleo in connection with her father's death.

Garner accused ABC News of lying to her and her family about having an opportunity to ask the president a question in order to get them to Washington D.C., where the town hall was held, for ratings.

"Yo this town hall that presidential town hall #abc arranged is a farce. It was nothing short of full exploitation of Black pain and grief," she tweeted.

Garner also lended her voice to Bernie Sanders' presidential campaign. She stood behind his social-justice platform and was featured in a campaign video.

"People are dying," Garner said in the video. "This is real. We need a president that will talk about it. I believe Bernie Sanders is a protester. He's not scared to go up against the criminal justice system. He is not scared."

Among her survivors are two children, a daughter Alyssa and a four-month-old son, Eric; her mother, Esaw Snipes; and her siblings, Emerald Garner, Eric Snipes, Emery Snipes; and a half-sister, Legacy Garner-Miller.